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Finding the Fourth Proportional to 532.41, 798.63 and 147.66

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Solution

The fourth proportional to 532.41, 798.63 and 147.66 is: 221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.41 : 798.63 = 147.66 : x
  2. Step 2: Convert to fraction form
    532.41/798.63 = 147.66/x
  3. Step 3: Cross multiply
    532.41x = 798.63 × 147.66
  4. Step 4: Simplify right side
    532.41x = 117,922.16
  5. Step 5: Solve for x
    x = 117,922.16/532.41
  6. Step 6: Final answer
    x = 221.49

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.